Search Results

Information Plants not scapose; pubescent or glabrous. Stems often erect, sometimes ascending, rarely subprostrate or decumbent, often branched distally, sometimes unbranched. Leaves basal and cauline; petiolate or sessile; basal rosulate or not, petiolate, blade margins dentate, sinuate, lyrate, runcinate, or pinnately lobed [entire]; cauline similar to basal, (blade smaller distally). Racemes (several-flowered), often considerably elongated in fruit. Fruiting pedicels ascending, divaricate, or erect, slender or stout (sometimes as wide as fruit). Flowers: sepals ovate or oblong, (glabrous or pubescent); petals yellow, obovate, spatulate, oblong, or suborbicular, (longer than sepals), claw differentiated from blade, (subequaling or longer than sepals, apex obtuse or emarginate); stamens tetradynamous; filaments not dilated basally; anthers oblong, (apex obtuse); nectar glands confluent, subtending bases of stamens, median glands present. Fruits usually sessile, rarely shortly stipitate (gynophore to 1 mm), usually linear, rarely lanceolate or subulate, smooth or torulose; valves each with prominent midvein and 2 conspicuous marginal veins, usually glabrous, rarely pubescent; replum rounded; septum complete; style subclavate [clavate, conical, cylindrical]; stigma capitate (lobes not decurrent). Seeds plump, not winged, oblong [ovoid]; seed coat (reticulate or papillate), not mucilaginous when wetted; cotyledons incumbent. x = 7.

Information Annuals; usually glabrous, sometimes sparsely hirsute, (trichomes cylindrical). Stems (usually few-branched from base, rarely simple), ascending or decumbent to prostrate, (0.5–)1–4(–6) dm, branched distally, (glabrous or hirsute proximally). Basal leaves not rosulate; blade margins pinnatifid. Cauline leaves petiolate or sessile; blade oblong, oblanceolate to spatulate, or obovate, (lateral lobes linear to oblong or ovate), (2–)3–9(–13) cm × 8–20(–35) mm, (lateral lobe smaller than terminal), base auriculate, margins usually pinnatifid to pinnatisect, rarely pectinate, or (terminal lobe) entire or dentate. Racemes considerably elongated. Fruiting pedicels divaricate-ascending to horizontal, straight, 1–4.5(–9) mm, (glabrous or sparsely pubescent). Flowers: sepals (rarely persistent), ascending, oblong, 0.8–2(–2.5) × 0.6–1.4 mm; petals (spreading), yellow, oblong to oblanceolate, 0.6–1.8(–2) × 0.3–1.3 mm; median filaments 1–1.7 mm; anthers ovate, 0.4–0.5 mm. Fruits siliques, curved-ascending, oblong to linear, 4–13(–18) × 1–2 mm; valves glabrous; ovules (30–)42–106 per ovary; style 0.1–0.8 mm. Seeds biseriate, brown, cordiform, 0.5–0.7 mm, colliculate. 2n = 16.